Overview
Teivas wastewater treatment plant serves the Viseu area in Portugal, providing secondary treatment for a population of 4,500. The plant discharges treated wastewater into the local watershed.
Teivas is a wastewater treatment plant located in São João de Lourosa, near Viseu, Portugal. It serves a population of approximately 4,500 people, making it a small-scale municipal facility. The plant is situated inland, away from coastal areas, and operates within Portugal's national water management framework. The plant provides secondary treatment, which is the standard biological treatment stage required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Secondary treatment effectively removes organic matter and suspended solids, ensuring the effluent meets quality standards before discharge. The plant's designed capacity is 8,162 cubic meters per day, with a current discharge volume of 750.29 cubic meters per day, indicating operational capacity well below design limits. The treated effluent is discharged into the local watershed, which ultimately drains into the Atlantic Ocean via the Vouga River basin. The region's water bodies support diverse aquatic life and are important for local agriculture and ecosystems. Proper treatment at Teivas helps protect downstream water quality and ecological health.
Environmental context
The plant discharges into the Vouga River basin, which flows through central Portugal and empties into the Atlantic Ocean near Aveiro. The watershed supports a variety of freshwater habitats and is used for irrigation and recreation. Downstream areas include the Ria de Aveiro lagoon, a sensitive coastal ecosystem that relies on good water quality from upstream tributaries. Effective secondary treatment at Teivas helps reduce nutrient and pollutant loads, protecting the ecological balance of these waters.
Frequently asked questions
The Teivas plant is located in São João de Lourosa, near Viseu, in central Portugal. It serves the surrounding municipality.
The plant serves approximately 4,500 people, classifying it as a small agglomeration under EU wastewater directives.
The plant provides secondary treatment, a biological process that removes organic matter and suspended solids, meeting EU standards for small communities.
The plant discharges into the Vouga River basin, which flows to the Atlantic Ocean. Its treatment helps protect the Vouga and downstream coastal waters.
Under the EU Urban Waste Water Treatment Directive, plants serving 2,000-10,000 people require secondary treatment. Teivas complies with this standard.
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